Lining shafts with concrete.



E. LARDY. LINING SHAFTS WITH CONCRETE.

AAILIOATION FILED JUNE 6, 1910.

Patented Sept. 12, 1911.

Z SHEETS-SHEET 1.

Looe-14e E. LARDY.

LINING SHAPTS WXTE. GONCRETE. PPLIUATIoN HLBD JUNE s, 1010.

Invenvr ,W 9733?@ m0090915 Y WW l meme@ sept, 12,1011.

. To all whom 'it may concern:

'or boards.

EMIL LAB/DY, OF MNSTER, WESTPHALIA, .GERMAJSTY.

LINLNG SHAFTS WITH CONCRETE.

11 Specification o'lietters Patent.

Patented iept. l2, 1911.

Application; filed June 6, 1910. ."Jeriel No. 565,378.

lle it known that I, EMU, LARDY, a subject ot' the German Emperor. residinuat 2S Augusta-strasse, Minister, Vilestphaliu, in the Empire of Germany, have invented new and useful Improvements in Lining Shafts with Concrete, ot which the iillowing is' n specitieation.

This invention relates toe method of lining' shafts with concrete,

ln the sinking ot shafts itfiloas hitherto been necessary in the event oifff their being lined' to first build up a temporary shell with U-shaped iron rings and sheet-metnl strips When a suiiicient length has thus been freed the-masonryisbuilt up from below starting from a foundation;l Where concrete. or beton has been employed for the lining of shafts, this has also been applied from below upward. ln the stampingF operation a special sheebiron `sheath or shell is moreover required. Finally, it has also been proposed to make use of concrete blocks of speciullshape which are applied around the innerv face-kof the shaft from" below upward in the samemanner as the masonry.

Now, my invention relates to n method of lining shafts with concrete inl which the actual operation of lining takes place from above downward sotfhat the lining can directl;r ollow the sinking of the shaft.' To

this end lthe operation is started trom a sus. pensionsupport of concrete upon an acourately horizontally lying wooden ring or crown around the .mouth of the shaft. To

this suspension ring the complete concrete `lining is hung lin sucoeeding sections by means of bolts and screws. 1f sul'ficientspece is obtainablebeneath the suspension ring :e platform 0r Sta the shaft andt .lining applied therefrom.

The operation canbe carried out', however,

from the-bottom 'of the-slmt without such n staging.` Thenecessity ofotoinporary structurofisthus completely obviated by my 1n- In the accompnying rawingz-Figure l represents a vertical 'sect on of a'shat illus- ,trating the method of lining b'y menusl 'of i:

staging, and withconcrete blocks. Fig. 2 is a.. perspective., \i ew fof one of the concrete A,blocks shown in ig.j 1. Fig'. 3 is a sectional View of a. portiongof a shaft illustrating the vmethod of'working without-e staging and withconcreteslabsgeand' Figs.. 4a. and 41?' are `a perspective View and a vertical transverse y y y mg can -be introduced into this ring n seriesof the concrete blocks is buil-t up to form a, ring upon shoot sections l section resljieotively of one of the slabs shown in Fig. 3. Figs. 5 21nd G illustrate the -twd methods ot preventing theeseape oit liquid concrete suggested hereafter.

The .platform or stage o (Fig. l) consists of two double or [shaped iron rings which are connected together by four bearing shoes. The said staging'lis freely suspended in the shaft by one or two cables. In the drawing o represents the concrete suspension ring, 'which muy be approximatey from one to the same height, is the wooden crown or ring upon which the said concrete is ap plied, c holes for the bolts by which the concrete blocks areq suspended, and n holes tl'irough which the space between the ooncrete liningf and the surrounding welll of :the shaft can be filled with cement mor-tar.

The concrete or beton blocks which are .employed in this method of carry-ing' out my invention are illustrated in Fig. 2. They are slightly curved longitudinally and are formed.

the one to engage `and tit the other. the outside are ribs f1 and f2. They are also provided with e wide groove g on the bottom for the reception of the carrying ring, two vertical holes o and two inclined holes d1, Z2 passing through the. block.' if vthe blocks are armored with-iron or wire, the iron insertion is so shaped that it lpnojects on the rear tace. The object of theu ribs and 'projections is to obtain e better oonneotion of the block with the concrete filled in behind it. v l

"Assuming now that the platform or staging e is .in the horizontal position, the bolts e' are rst intnoduced, and a lJ-sllnped iron ring 7c is leid upon the said staging. Above Upon of Ifirons so that the wtoimnontoned .holoee .(Fiis.' l and 2) lio .exactly beneath the bolts ring rigidly secured to the suspension ring by means of the bolts and nuts, the space left between the outer fece ont the rin? and the wall of the shaft being filled with iquid cen'ient through the holes n-obove elluded to. in the oase of the succeeding `{mincir-ete "same/is, effected through holes d "in the blocks of the superposed ring. in orderv to effect a. more efticientjointing of the blocks top and bottom of an angular configuration,

two meters in sectional width, and of about z. After the concrete ring has thus, been .Y b ui'1tup,the platform. is raised and thesaad -sections, the filling/of the spacebehind the an elastic filling .substancev may be introduced int/o the joints betweenthe same and in Fig. 6), or provided with anedge (asY shown in Fig. 5 The surface of the platform supports the saidv piles which are cut "somewhat conicallin vshape, and Aare pr0.

A' Vented. The uppermost rin scribed, jointed through lio pension' ring. id

vided with. a' groove and tongue on the longitudinalv sides, so. that when driven forlWard they close together to form a complete circular partition. A vWooden saddle-piece upon thepiles, and restingin the spaces g prevents the liquid.. filling substance from vescaping from the vertical joints downward into the @heft y The settingA of each individual stone ring takes place immediately after ythe suspension of the preceding ring. To this end theV joints' between vidual blocks are iilled throughA the shorter holes or passages d1. Then follows .the tilling of the interniediatespaces between the Concrete lining'and the shaft Wall through the longer passages d2 the footot the lower ribs ment of passages,

ecial advantage, that in thecase'of the'lowermost vconcrete ring, 'the unintentional penetration of concrete li'nto the passwage d2 and the escape'thereof from thevertical joints downward ispreis, as above de- Thestructure can be built up of M shaped iron rings and thin` concrete ple-tesor slabs with 'iron insertions.

' screwed into and carry slab-like blocks by behind theblocks, 'fastened to short view endve'rticai irneans of grooves and tongues. This ar. rangement is illustrated in Fig. 3. AIn order Ato] prevent the filling material vfronrtelling fan auxiliary ring alY is so l bolts 2', that a spaceA 7i remains exactly as inV :theliir'st describedconthe spaces to be filledthe indiwhich terminate at f1. This arrange-A and of the Wooden pack-v 'ing device has the s es fh) in the sus.

The` iron rings are struction for' the reception of the-supports l The concrete slabs e and 4b in perspective section respectively.

. aire shovvnin ,i

with the groove of the adjacent shafts which consistent moeite They are slightly curved and are provided on-o'needge with a half sunk-in iron strip l, which forms the tongue for engagement block when the 'lining is being built up. The hole i serves for the introduction of the filling cement or concrete. On the rear side these holes 4are provided with projecting iron insertions.

In this second inode of carrying out the invention use can also be made of the staging. ln lieu of liquid cement mortar or concrete for lilling the intermediate spaces between the lining and the shaft Wall, other mortars or the like can be made use of, provided the shaft permits this to be done; the said tilling can also be effected hydraulically. Thev method of lining shafts above described possesses,

as' compared with the known ineens olining hitherto practiced, the ad- -vantagethat the lining is rigidly built up and temporary structures, which have 'subsequently to be removed, are rendered unnecessary.

Claims: l. 'l`he method of lining the Wlziflls l`of` shafts, which consistsofprovidinga sup* port at the mouth of the shafh thci'rprviding liningblocks lo1"y concrete, suspending the saine from said, support, and then introduc-V ing vconcrete between the lining and the' Walls of the shaft. i I v 2. The method of lining -the Walls of shaftspwhicli consists of providing a support atthe mouth of the shaft which'constitutes lining for the shaft Iat thatpar't," then adding `thereto sec-tional concrete, courses supported therefrom, andthen 'introducing cement between Athe lining and the walls of theshatt,` y

3. The inethod lining the Walls` ,oi"y

providing 'a support'atthe -nioiith of the shaft which at the saine time constitutes aliningfor the shaft at that point, then adding thereto sectional concrete courses supported therefrom` and cement between vthe lining then introducing GERT. Bona, M. Krvnrrnns. 

